From: Alexandru Ardelean <ardeleana...@gmail.com>

If you unplug a QMI device, the /dev/cdc-wdmX device
disappears but uqmi will continue to poll it endlessly.

Then, when you plug it back, you have 2 uqmi processes,
and that's bad, because 2 processes talking QMI to the
same device [and the same time] doesn't seem to work well.

Signed-off-by: Alexandru Ardelean <ardeleana...@gmail.com>
---
 package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh 
b/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh
index 6f11933a9e51..9c953ea69757 100755
--- a/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh
+++ b/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh
@@ -65,6 +65,7 @@ proto_qmi_setup() {
        [ -n "$delay" ] && sleep "$delay"
 
        while uqmi -s -d "$device" --get-pin-status | grep '"UIM 
uninitialized"' > /dev/null; do
+               [ -e "$device" ] || return 1
                sleep 1;
        done
 
@@ -102,6 +103,7 @@ proto_qmi_setup() {
 
        echo "Waiting for network registration"
        while uqmi -s -d "$device" --get-serving-system | grep '"searching"' > 
/dev/null; do
+               [ -e "$device" ] || return 1
                sleep 5;
        done
 
-- 
2.7.4


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